She overcomes her fears by separating herself from the outcome, if she can focus on the experience, she's fearless.
She recommends resisting the urge to undermine your own accomplishments. Be proud of what you've done and don't worry about appearing egotistical.
"Every new level has a new devil", at every step of your career, you're gonna find new challenges and fears, it's a never-ending thing, no matter your years of experience.
She recommends having the mindset of "I'll be able to handle anything you throw at me".